Replace ASSERT with DCHECK in wtf/Threading*

Replace ASSERT with DCHECK in wtf/Threading*

BUG=596760
Committed: https://crrev.com/65157fe7b75097e92a381363b6ef49291d538593
Cr-Commit-Position: refs/heads/master@{#433848}

[Charlie Harrison, 2016-11-22 05:27:24]

The CQ bit was checked by csharrison@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-22 05:27:37]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-22 07:08:20]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-22 07:08:21]

Dry run: This issue passed the CQ dry run.

[Charlie Harrison, 2016-11-22 12:56:34]

csharrison@chromium.org changed reviewers:
+ tkent@chromium.org

[Charlie Harrison, 2016-11-22 12:56:34]

tkent ptal?

[tkent, 2016-11-22 13:04:23]

lgtm

[Charlie Harrison, 2016-11-22 13:52:35]

Thanks, this'll make the changes to SchemeRegistry more palatable.

[Charlie Harrison, 2016-11-22 13:52:40]

The CQ bit was checked by csharrison@chromium.org

[commit-bot: I haz the power, 2016-11-22 13:52:52]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-22 13:56:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479822760095730, "parent_rev":
"2d6654f39b8e5d5bf30bbd783899adebe913e08c", "commit_rev":
"ec562081526039c109b363813419c8435803d095"}

[commit-bot: I haz the power, 2016-11-22 13:56:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-22 13:58:11]

Description was changed from

==========
Replace ASSERT with DCHECK in wtf/Threading*

BUG=596760
==========

to

==========
Replace ASSERT with DCHECK in wtf/Threading*

BUG=596760

Committed: https://crrev.com/65157fe7b75097e92a381363b6ef49291d538593
Cr-Commit-Position: refs/heads/master@{#433848}
==========

[commit-bot: I haz the power, 2016-11-22 13:58:12]

Patchset 1 (id:??) landed as
https://crrev.com/65157fe7b75097e92a381363b6ef49291d538593
Cr-Commit-Position: refs/heads/master@{#433848}